Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Polyoxyethylene-polyoxypropylene copolymer

Lutrol Monolan Pluronic poloxalkol polyethylene-propylene glycol copolymer polyoxyethylene-polyoxypropylene copolymer Supronic Synperonic. [Pg.535]

Poloxamers are nonionic polyoxyethylene-polyoxypropylene copolymers used primarily in pharmaceutical formulations as emulsifying or solubilizing agents.The polyoxyethylene... [Pg.535]

Poly (oxyethyleneoxyterephthaloyl). See Polyethylene terephthalate Polyoxyethylene/polyoxypropylene copolymer. See EO/PO block polymer or copolymer... [Pg.1301]

Capmul MCM/lmwItor 742 Mono- and dicaprylic acid and capric acid esters of glycerol 3-4 Pluronic F127 Polyoxyethylene—polyoxypropylene copolymers 18-23... [Pg.96]

Rassing, J. and Attwood, D., 1983. Ultrasonic velocity and hght-scattering smdies on the polyoxyethylene-polyoxypropylene copolymer Pluronic F127 in aqueous solution. Int. J. Pharm., 13, 47-55. [Pg.137]

EOEOEA. See 2-(2-Ethoxyethoxy) ethyl acrylate EO/PO block polymer or copolymer CAS 9003-11-6 (generic) 106392-12-5 Synonyms Ethylene glycol/propylene glycol block copolymer POE/POP copolymer Polyoxyethylene/polyoxypropylene copolymer Polyoxypropylene/polyoxyethylene block polymer Polyoxypropylene/polyoxyethylene copolymer POP/POE copolymer Formula (CsHeO C2H40)x... [Pg.1621]

Polyoxyethylene/polyoxypropylene copolymers with high PO content have been used for years in the automatic dishwashing process but, because of the 1989 European Community legislation, they have been progressively replaced by their derivatives based on fatty alcohols or their corresponding ethers terminated by an alkyl group [26]. [Pg.429]

Synonyms Ethylene glycol/propylene glycol block copolymer POE/POP copolymer Polyoxyethylene/polyoxypropylene copolymer Polyoxypropylene/polyoxy-ethylene block polymer Polyoxypropylene/polyoxyethylene copolymer POP/POE copolymer... [Pg.2114]

An oral dental riase geaeraHy coasists of water, alcohol, a humectant, an emulsifier, flavor, color, and an active agent. Water is the primary vehicle. The alcohol provides bite and is also a formulation aid. The humectant improves the feel ia the mouth and also prevents locking of the cap to the container between uses glycerin or noncrystaUiziag sorbitol may be satisfactory. The emulsifier is a nonionic type, for example, a polyoxyethylene—polyoxypropylene block copolymer or a polyoxyethylene sorbitan fatty acid ester. Flavors are generally a type of mint or cinnamon. Colors are FD C or D C. [Pg.503]

Dewatering surfactants can be polyoxyethylene, polyoxypropylene, and polyethylene carbonates [1348] or p-tert-amylphenol condensed with formaldehyde, or they can be composed of a copolymer from 80% to 100% alkyl methacrylate monomers and hydrophilic monomers [777]. Such a well treatment fluid may be used in both fracturing and competition operations to enhance and maintain fracture conductivity over an extended period of production. [Pg.268]

Emulsifiers. Natural lecithin is one of the most widely used emulsifiers because it is metabolized in the body. However, type I allergic reaction to soybean lecithin emulsified in lipid solutions has been observed [195], Among the synthetic emulsifying agents, block copolymers of polyoxyethylene-polyoxypropylene (poloxamer) have attracted increasing interest for parenteral emulsions. Other examples of emulsifiers commonly found in parenteral formulations are given in Table 9 [190]. [Pg.277]

Polyoxyethylene 20 sorbitan monolaurate Polyoxyethylene 20 sorbitan monopalmitate Polyoxyethylene 20 sorbitan monostearate Polyoxyethylene 20 sorbitan monooleate Sorbitan monooleate Sorbitan trioleate Sorbitan monostearate Sorbitan monopalmitate Sorbitan monolaurate Polyoxyl 35 castor oil Polyoxyl 40 hydrogenated castor oil Polyoxyethylene polyoxypropylene block copolymer... [Pg.231]

Prasad, K. N., T. T. Luong, A. T. Florence, J. Paris, C. Vaution, M. SeillerandF. Puisieux. 1979. Surface activity and association of ABA polyoxyethylene-polyoxypropylene block copolymers in aqueous solution. [Pg.370]

These are stable micelles that are formed with polymeric surfactants. Amphiphilic block copolymers such as the pluronics (polyoxyethylene-polyoxypropylene block copolymers) are able to self-assemble into polymeric micelles and hydrophobic drugs may be solubilized within the core of the micelle or, alternatively, conjugated to the micelle-forming polymer. Although micelles are rather dynamic systems that continuously exchange units between the micelle structure and the free units in solution, those composed of polyoxyethylene - poly(aspartic acid) have been found sufficiently... [Pg.803]

The use of synthetic emulsifiers gave different results for instance, the use of 1% (w/w) of the polyoxyethylene-polyoxypropylene block copolymer Pluronic PE... [Pg.9]

In particular, the effects of various stabilizers of the primary emulsion on the encapsulation of SCG were studied. Different hydrophilic polymers were employed namely gelatin (250 Bloom grades) or the polyoxyethylene-polyoxypropylene block copolymer, poloxamer 407. To further optimize the encapsulation yield, some experimental contrivances have been performed dispersion by turbine of the drug within the lipidic matrix, rapid emulsion cooling using an ice bath, and rapid separation of LS by filtration. The optimized procedure resulted in a final encapsulation of the drug of 50% (Table 2.10). [Pg.15]

Hazardous Ingredients Polyoxypropylene-polyoxyethylene block copolymer (100%) ethylene oxide (trace) 1,4-dioxane (trace) propylene oxide (trace)... [Pg.344]

Hydrex AC/ Petroferm Aqueous solution of ethoxylaled, propoxylated secondary alcohol and polyoxypropylene-polyoxyethylene block copolymer Stencil cleaning (43 C—49°C), with ultrasonics, 10% solution in water N/A 1 ( prox.) N/A None >1 (estimated)... [Pg.185]

Hydrex SP/ Petroferm Dipropylene glycol n-butyl ether and polyoxypropylene-polyoxyethylene block copolymer Stencil misprint spray stencil clean (10% in water), 24°C-60°C or defluxing (5%-10% in water) N/A 1 cps (in use) N/A 105 (of concent rate) >1 (estimated)... [Pg.185]

Block copolymers composed of two or three hydrophilic and hydrophobic blocks possess amphiphilic properties and are used widely as nonionic surfactants. Poloxamers are triblock copolymers polyoxyethylene-polyoxypropylene-polyoxyethylene (PEO-PPO-PEO), commercially known... [Pg.87]

Culbreth, P.H., Emanuele, R.M., Hunter, R.L. (1992) New polyoxypropylene-polyoxyethylene block copolymers for treating tissue damaged by ischaemia or reperfusion, stroke, myocardial damage and adult respiratory distress syndrome Microbial Infection. European Patent WO 9216484. [Pg.253]

Journal of Applied Polymer Science 87, No.6, 7th Feb.2003, p. 1016-26 SOLUTE AND SOLVENT EFFECTS ON THE THERMORHEOLOGICAL PROPERTIES OF POLYOXYETHYLENE-POLYOXYPROPYLENE BLOCK COPOLYMERS. IMPLICATIONS FOR PHARMACEUTICAL DOSAGE FORM DESIGN Jones D S Brown A F Woolfson A D Belfast,Queen s University... [Pg.69]

See other pages where Polyoxyethylene-polyoxypropylene copolymer is mentioned: [Pg.800]    [Pg.800]    [Pg.138]    [Pg.171]    [Pg.229]    [Pg.302]    [Pg.800]    [Pg.800]    [Pg.138]    [Pg.171]    [Pg.229]    [Pg.302]    [Pg.791]    [Pg.791]    [Pg.64]    [Pg.1344]    [Pg.178]    [Pg.238]    [Pg.15]    [Pg.174]    [Pg.533]    [Pg.40]    [Pg.33]    [Pg.457]    [Pg.304]    [Pg.532]    [Pg.204]   
See also in sourсe #XX -- [ Pg.535 ]



SEARCH



Polyoxyethylenated polyoxypropylene

Polyoxyethylene

Polyoxyethylene-polyoxypropylene

Polyoxyethylenes

© 2024 chempedia.info